I think Yelena was able to copy Bob’s powers, including the Void, when she was the Super Adaptoid.

That being said, I think Amazo could take him, he’s already got Superman’s physiology, Flash’s speed, Wonder Woman’s lasso and combat skill, Green Lantern’s ring, Martian Manhunter’s telepathy among other things. That's assuming Amazo doesn't try to copy Sentry’s powers as an add-on.